L-87-219, Advises of Intention to Issue Ser,Addressing Permanent Incorporation of Continuous Tube Cleaning Sys Into Plant Design & Final Resolution of Need to Upgrade Cv 2201, Following Tube Cleaning Sys Evaluation Period
| ML17347A558 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 06/15/1987 |
| From: | Woody C FLORIDA POWER & LIGHT CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| L-87-219, NUDOCS 8706230350 | |
| Download: ML17347A558 (4) | |
Text
REGULATORY INFORMATION DISTRIBUTION SYSTEM (BIDS)
A'CCESS ION NBR FAC IL: 50-250 50-25L AUTH. NAME WOODY> C. O.
RECIP. NAMF 8706230350 DGC. DATE: Bi/06/L5 NOTARIZED:
NQ Turkey Point Plant>
Unit 3> Florida Poiuer ano Light C
Turkey Point Plant>
Unit 4> Florida Poiuer and Light C
AUTHOR AFFILIATION Florida Poiuer
~ Light Co.
RFC IP IENT AFFILIATION Document Control Branch (Document Control Desk)
DOCKEl ir Q5000
'Q 0500025L
SUBJECT:
Advises of intention to issue SER> addressing permanent incorpoTation of continuous tube cleaning sys into plant design 5 final resolution of need to upgT ade CV 220L>
folloiuing tube cleaning sys evaluation period.
DISTRIBUTION CODE:
lFQLD COPIES RECEIVED: LTR I ENCL, D SIZE:
TITLE: General (50 Dkt)-Insp Rept/Notice of Violation Response NOTES:
REC IP IENT ID CODE/NAME PD2-2 PD CGP IES LTTR ENCL REC IP IENT ID CODE/NAME YicDONALD> D CGP IFS LTTR ENCL INTERNAL:
AEOD ENF LIEBERMAN NRR/DQFA DIR NRR/DRLP/RPB
'LRB t
REG F' FILE GL FXTERNAL:
LPDR NSIC DEDRQ NRR RGE> M. L NRR/DREP/EPB NRR/DR IS DIR GQC/HDS2 RES DEPY GI TOTAL NUMBER QF COPIES REQUIRED:
LTTR 20 ENCL
0'
P. O. BOX 14000, JUNO BEACH, FL 3340S FLORIDA POWER & LIGHT COMPANY JUNE 15 1987 L-87-2 I 9 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Gent lemen:
Re:
Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-25 I Unresolved Item 86-I 0-03 At the May 9, I 986 Enforcement Conference discussed in Inspection Report 50-250 86-26 and 50-25l 86-26, Florida Power 8 Light identified as corrective action for Unresolved Item (URI) 86-I0-3, that valve CV 220I, Intake Cooling Water (ICW) Temperature Control valve for Turbine Plant Cooling Water (TPCW)
Heat Exchangers, would be replaced with a valve that would fail closed on loss of instrument air concurrent with the presence of a safety injection actuation signal.
Currently the plant is operating in accordance with a safety evaluation which
- requires, under certain ICW flow rates, temperatures, and heat exchanger heat transfer resistances, that an operator be stationed to manually isolate the ICW flow to the TPCW heat exchanger in the event of its required closure.
As discussed with members of the Region II staff at a recent visit to the Turkey Point site, FPL plans on installing, during the current refueling outage on Unit 3 and during the l988 outage on Unit 4, a continuous tube cleaning system on both the TPCW and the CCW heat exchangers.
This modification is expected to enhance the heat removal capacity of the heat exchangers sufficiently so that
'accident heat loads can be accommodated with ICW inlet temperatures as high as 97 F and at reduced ICW flow to the CCW heat exchangers, as might be experienced under certain single failures of CV 220l.
The installation of the upgraded CV 220I on Unit 3 and 4 is being postponed pending an evaluation to determine if this continuous tube cleaning system can maintain heat removal capabilities within design basis heat loads from the CCW system without isolation of 'the TPCW heat exchangers.
In the interim, we intend to continue the corrective actions required by the previously discussed safety evaluation.
8706230350 87061 5 PDR ADOCK 05000250 "8
PDR SDF I /0 I 3l I PEOPLE... SERVING PEOPLE
U. S. Nuclear Regulatory Commmission L-87-2 I 9 Page two Following the tube cleaning system evaluation period, a safety evaluation report will be issued to address the permanent incorporation of the continuous tube cleaning system into the plant design and the final resolution of the need to upgrade CV 220l.
A follow-up report will be issued providing the results of this eva luation.
Should there be any questions on this information, please contact us.
Very truly yours, C. O. Wo Group Vice President Nuclear Energy COW/SDF/gp cc:
Dr. J. Nelson Grace, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, Turkey Point Plant SDF I /0 I3/2